输水工程取水头部水流特性三维数值模拟研究

Three-dimensional numerical simulation study on water flflow characteristics of water intake head in water conveyance project

摘要:

首先阐述三维紊流的计算方法，针对输水工程进水口水流特性，采用标准 k-ε 模型对三维水流运动进行计算，选取 VOF 法对自由表面进行处理，利用有限体积法对计算区域进行离散化，并采用无滑移的固壁边界条件，模拟进水口水流的复杂流动状态，并将数值模拟的结果与试验资料进行详细比对，验证数学模型的可靠性，在进水口工程设计研究中有较大参考价值。

Abstract:

In this paper, the calculation method of three-dimensional turbulence is firstly described. For the water flow characteristics of the water supply project inlet, it calculates the 3D water flow using a standard k-ε model, uses the VOF method to treat the free surface, uses the fifinite volume method to discretize the calculation area, and adopts the solid-wall boundary condition without slip to simulate the complex flflow state of the inlet water flflow. And the numerical simulation results are compared with the experimental data in detail, it verififies the reliability of the mathematical model and has great reference value in the design research of water inlet engineering.